1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh
4 <imp@village.org>. See end of file for further details. For commonly
5 done items, please see the COMMON ITEMS: section later in the file.
7 Items affecting the ports and packages system can be found in
8 /usr/ports/UPDATING. Please read that file before running
11 NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW ON IA64 OR SUN4V:
12 For ia64 the INVARIANTS and INVARIANTS_SUPPORT kernel options
13 were left in the GENERIC kernel because the kernel does not
14 work properly without them. For sun4v all of the normal kernel
15 debugging tools present in HEAD were left in place because
16 sun4v support still needs work to become production ready.
19 802.11s D3.03 support was committed. This is incompatible with
20 the previous code, which was based on D3.0.
23 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
24 mount(8) and -a option for df(1) to see them.
27 Remove the option STOP_NMI. The default action is now to use NMI
28 only for KDB via the newly introduced function stop_cpus_hard()
29 and maintain stop_cpus() to just use a normal IPI_STOP on ia32
36 Bump the shared library version numbers for all libraries that
37 do not use symbol versioning as part of the 8.0-RELEASE cycle.
38 Bump __FreeBSD_version to 800105.
41 Due to changes in the implementation of virtual network stack
42 support, all network-related kernel modules must be recompiled.
43 As this change breaks the ABI, bump __FreeBSD_version to 800104.
46 The TOE interface to the TCP syncache has been modified to remove struct
47 tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. The
48 cxgb driver is the only TOE consumer affected by this change, and needs
49 to be recompiled along with the kernel. As this change breaks the ABI,
50 bump __FreeBSD_version to 800103.
53 Padding has been added to struct tcpcb, sackhint and tcpstat in
54 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
55 maintainig the ABI. However, this change breaks the ABI, so bump
56 __FreeBSD_version to 800102. User space tools that rely on the size of
57 any of these structs (e.g. sockstat) need to be recompiled.
60 The NFS_LEGACYRPC option has been removed along with the old
61 kernel RPC implementation that this option selected. Kernel
62 configurations may need to be adjusted.
65 The network interface device nodes at /dev/net/<interface> have
66 been removed. All ioctl operations can be performed the normal
67 way using routing sockets. The kqueue functionality can
68 generally be replaced with routing sockets.
71 The documentation from the FreeBSD Documentation Project
72 (Handbook, FAQ, etc.) is now installed via packages by
73 sysinstall(8) and under the /usr/local/share/doc/freebsd
74 directory instead of /usr/share/doc.
77 The ABI of various structures related to the SYSV IPC API have
78 been changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43
79 kernel options now all require COMPAT_FREEBSD7.
80 Bump __FreeBSD_version to 800100.
83 Layout of struct vnet has changed as routing related variables
84 were moved to their own Vimage module. Modules need to be
85 recompiled. Bump __FreeBSD_version to 800099.
88 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023
89 and 1024 respectively. As long as no more than 16 groups per
90 process are used, no changes should be visible. When more
91 than 16 groups are used, old binaries may fail if they call
92 getgroups() or getgrouplist() with statically sized storage.
93 Recompiling will work around this, but applications should be
94 modified to use dynamically allocated storage for group arrays
95 as POSIX.1-2008 does not cap an implementation's number of
96 supported groups at NGROUPS_MAX+1 as previous versions did.
98 NFS and portalfs mounts may also be affected as the list of
99 groups is truncated to 16. Users of NFS who use more than 16
100 groups, should take care that negative group permissions are not
101 used on the exported file systems as they will not be reliable
102 unless a GSSAPI based authentication method is used.
105 The compiling option ADAPTIVE_LOCKMGRS has been introduced.
106 This option compiles in the support for adaptive spinning for lockmgrs
107 which want to enable it. The lockinit() function now accepts the
108 flag LK_ADAPTIVE in order to make the lock object subject to
109 adaptive spinning when both held in write and read mode.
112 The layout of the structure returned by IEEE80211_IOC_STA_INFO
113 has changed. User applications that use this ioctl need to be
117 The layout of struct thread has changed. Kernel and modules
121 The layout of structs ifnet, domain, protosw and vnet_net has
122 changed. Kernel modules need to be rebuilt.
123 Bump __FreeBSD_version to 800097.
126 window(1) has been removed from the base system. It can now be
127 installed from ports. The port is called misc/window.
130 The way we are storing and accessing `routing table' entries
131 has changed. Programs reading the FIB, like netstat, need to
135 A new netisr implementation has been added for FreeBSD 8. Network
136 file system modules, such as igmp, ipdivert, and others, should be
138 Bump __FreeBSD_version to 800096.
141 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose
145 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
146 Bump __FreeBSD_version to 800094.
149 Add mnt_xflag field to 'struct mount'. File system modules
151 Bump __FreeBSD_version to 800093.
154 The compiling option ADAPTIVE_SX has been retired while it has been
155 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
156 The KPI for sx_init_flags() changes as accepting flags:
157 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag
158 has been introduced in order to handle the reversed logic.
159 Bump __FreeBSD_version to 800092.
162 Add support for hierarchical jails. Remove global securelevel.
163 Bump __FreeBSD_version to 800091.
166 The layout of struct vnet_net has changed, therefore modules
168 Bump __FreeBSD_version to 800090.
171 The newly imported zic(8) produces a new format in the
172 output. Please run tzsetup(8) to install the newly created
173 data to /etc/localtime.
176 The sysctl tree for the usb stack has renamed from hw.usb2.* to
177 hw.usb.* and is now consistent again with previous releases.
180 802.11 monitor mode support was revised and driver api's
181 were changed. Drivers dependent on net80211 now support
182 DLT_IEEE802_11_RADIO instead of DLT_IEEE802_11. No
183 user-visible data structures were changed but applications
184 that use DLT_IEEE802_11 may require changes.
185 Bump __FreeBSD_version to 800088.
188 The layout of the following structs has changed: sysctl_oid,
189 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
190 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
191 panics may be experienced. World rebuild is required for
192 correctly checking networking state from userland.
193 Bump __FreeBSD_version to 800085.
196 MLDv2 and Source-Specific Multicast (SSM) have been merged
197 to the IPv6 stack. VIMAGE hooks are in but not yet used.
198 The implementation of SSM within FreeBSD's IPv6 stack closely
199 follows the IPv4 implementation.
201 For kernel developers:
203 * The most important changes are that the ip6_output() and
204 ip6_input() paths no longer take the IN6_MULTI_LOCK,
205 and this lock has been downgraded to a non-recursive mutex.
207 * As with the changes to the IPv4 stack to support SSM, filtering
208 of inbound multicast traffic must now be performed by transport
209 protocols within the IPv6 stack. This does not apply to TCP and
210 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
212 * The KPIs used by IPv6 multicast are similar to those used by
213 the IPv4 stack, with the following differences:
214 * im6o_mc_filter() is analogous to imo_multicast_filter().
215 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
216 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
217 * IN6_LOOKUP_MULTI() has been deprecated and removed.
218 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
219 for MLDv1 have an additional 'timer' argument which is used to
220 jitter the initial membership report for the solicited-node
221 multicast membership on-link.
222 * This is not strictly needed for MLDv2, which already jitters
223 its report transmissions. However, the 'timer' argument is
224 preserved in case MLDv1 is active on the interface.
226 * The KAME linked-list based IPv6 membership implementation has
227 been refactored to use a vector similar to that used by the IPv4
229 Code which maintains a list of its own multicast memberships
230 internally, e.g. carp, has been updated to reflect the new
233 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
234 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
235 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
236 implementation constraint which needs to be addressed in HEAD.
238 For application developers:
240 * The changes are broadly similar to those made for the IPv4
243 * The use of IPv4 and IPv6 multicast socket options on the same
244 socket, using mapped addresses, HAS NOT been tested or supported.
246 * There are a number of issues with the implementation of various
247 IPv6 multicast APIs which need to be resolved in the API surface
248 before the implementation is fully compatible with KAME userland
249 use, and these are mostly to do with interface index treatment.
251 * The literature available discusses the use of either the delta / ASM
252 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
253 using setsourcefilter(3)/getsourcefilter(3). For more information
254 please refer to RFC 3768, 'Socket Interface Extensions for
255 Multicast Source Filters'.
257 * Applications which use the published RFC 3678 APIs should be fine.
259 For systems administrators:
261 * The mtest(8) utility has been refactored to support IPv6, in
262 addition to IPv4. Interface addresses are no longer accepted
263 as arguments, their names must be used instead. The utility
264 will map the interface name to its first IPv4 address as
265 returned by getifaddrs(3).
267 * The ifmcstat(8) utility has also been updated to print the MLDv2
268 endpoint state and source filter lists via sysctl(3).
270 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
271 loopback of IPv6 multicast datagrams by default; it defaults to 1
272 to preserve the existing behaviour. Disabling multicast loopback is
273 recommended for optimal system performance.
275 * The IPv6 MROUTING code has been changed to examine this sysctl
276 instead of attempting to perform a group lookup before looping
277 back forwarded datagrams.
279 Bump __FreeBSD_version to 800084.
282 Implement low-level Bluetooth HCI API.
283 Bump __FreeBSD_version to 800083.
286 The layout of struct malloc_type, used by modules to register new
287 memory allocation types, has changed. Most modules will need to
288 be rebuilt or panics may be experienced.
289 Bump __FreeBSD_version to 800081.
292 Anticipate overflowing inp_flags - add inp_flags2.
293 This changes most offsets in inpcb, so checking v4 connection
294 state will require a world rebuild.
295 Bump __FreeBSD_version to 800080.
298 Add an llentry to struct route and struct route_in6. Modules
299 embedding a struct route will need to be recompiled.
300 Bump __FreeBSD_version to 800079.
303 The size of rt_metrics_lite and by extension rtentry has changed.
304 Networking administration apps will need to be recompiled.
305 The route command now supports show as an alias for get, weighting
306 of routes, sticky and nostick flags to alter the behavior of stateful
308 Bump __FreeBSD_version to 800078.
311 Do not use Giant for kbdmux(4) locking. This is wrong and
312 apparently causing more problems than it solves. This will
313 re-open the issue where interrupt handlers may race with
314 kbdmux(4) in polling mode. Typical symptoms include (but
315 not limited to) duplicated and/or missing characters when
316 low level console functions (such as gets) are used while
317 interrupts are enabled (for example geli password prompt,
318 mountroot prompt etc.). Disabling kbdmux(4) may help.
321 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
322 kernel modules referencing any of the above need to be recompiled.
323 Bump __FreeBSD_version to 800075.
326 GEOM_PART has become the default partition slicer for storage devices,
327 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
328 introduces some changes:
330 MSDOS/EBR: the devices created from MSDOS extended partition entries
331 (EBR) can be named differently than with GEOM_MBR and are now symlinks
332 to devices with offset-based names. fstabs may need to be modified.
334 BSD: the "geometry does not match label" warning is harmless in most
335 cases but it points to problems in file system misalignment with
336 disk geometry. The "c" partition is now implicit, covers the whole
337 top-level drive and cannot be (mis)used by users.
339 General: Kernel dumps are now not allowed to be written to devices
340 whose partition types indicate they are meant to be used for file
341 systems (or, in case of MSDOS partitions, as something else than
344 Most of these changes date approximately from 200812.
347 The uscanner(4) driver has been removed from the kernel. This follows
348 Linux removing theirs in 2.6 and making libusb the default interface
352 The multicast forwarding code has been cleaned up. netstat(1)
353 only relies on KVM now for printing bandwidth upcall meters.
354 The IPv4 and IPv6 modules are split into ip_mroute_mod and
355 ip6_mroute_mod respectively. The config(5) options for statically
356 compiling this code remain the same, i.e. 'options MROUTING'.
359 Support for the IFF_NEEDSGIANT network interface flag has been
360 removed, which means that non-MPSAFE network device drivers are no
361 longer supported. In particular, if_ar, if_sr, and network device
362 drivers from the old (legacy) USB stack can no longer be built or
366 POSIX.1 Native Language Support (NLS) has been enabled in libc and
367 a bunch of new language catalog files have also been added.
368 This means that some common libc messages are now localized and
369 they depend on the LC_MESSAGES environmental variable.
372 The k8temp(4) driver has been renamed to amdtemp(4) since
373 support for K10 and K11 CPU families was added.
376 IGMPv3 and Source-Specific Multicast (SSM) have been merged
377 to the IPv4 stack. VIMAGE hooks are in but not yet used.
379 For kernel developers, the most important changes are that the
380 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
381 and this lock has been downgraded to a non-recursive mutex.
383 Transport protocols (UDP, Raw IP) are now responsible for filtering
384 inbound multicast traffic according to group membership and source
385 filters. The imo_multicast_filter() KPI exists for this purpose.
386 Transports which do not use multicast (SCTP, TCP) already reject
387 multicast by default. Forwarding and receive performance may improve
388 as a mutex acquisition is no longer needed in the ip_input()
389 low-level input path. in_addmulti() and in_delmulti() are shimmed
390 to new KPIs which exist to support SSM in-kernel.
392 For application developers, it is recommended that loopback of
393 multicast datagrams be disabled for best performance, as this
394 will still cause the lock to be taken for each looped-back
395 datagram transmission. The net.inet.ip.mcast.loop sysctl may
396 be tuned to 0 to disable loopback by default; it defaults to 1
397 to preserve the existing behaviour.
399 For systems administrators, to obtain best performance with
400 multicast reception and multiple groups, it is always recommended
401 that a card with a suitably precise hash filter is used. Hash
402 collisions will still result in the lock being taken within the
403 transport protocol input path to check group membership.
405 If deploying FreeBSD in an environment with IGMP snooping switches,
406 it is recommended that the net.inet.igmp.sendlocal sysctl remain
407 enabled; this forces 224.0.0.0/24 group membership to be announced
410 The size of 'struct igmpstat' has changed; netstat needs to be
411 recompiled to reflect this.
412 Bump __FreeBSD_version to 800070.
415 libusb20.so.1 is now installed as libusb.so.1 and the ports system
416 updated to use it. This requires a buildworld/installworld in order to
417 update the library and dependencies (usbconfig, etc). Its advisable to
418 rebuild all ports which uses libusb. More specific directions are given
419 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
420 libusb are no longer required and can be removed.
423 A workaround is committed to allow the creation of System V shared
424 memory segment of size > 2 GB on the 64-bit architectures.
425 Due to a limitation of the existing ABI, the shm_segsz member
426 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
427 wrong for large segments. Note that limits must be explicitly
428 raised to allow such segments to be created.
431 The layout of struct ifnet has changed, requiring a rebuild of all
432 network device driver modules.
435 The /dev handling for the new USB stack has changed, a
436 buildworld/installworld is required for libusb20.
439 The new USB2 stack has now been permanently moved in and all kernel and
440 module names reverted to their previous values (eg, usb, ehci, ohci,
441 ums, ...). The old usb stack can be compiled in by prefixing the name
442 with the letter 'o', the old usb modules have been removed.
443 Updating entry 20090216 for xorg and 20090215 for libmap may still
447 The rc.conf(5) option if_up_delay has been renamed to
448 defaultroute_delay to better reflect its purpose. If you have
449 customized this setting in /etc/rc.conf you need to update it to
453 xorg 7.4 wants to configure its input devices via hald which does not
454 yet work with USB2. If the keyboard/mouse does not work in xorg then
456 Option "AllowEmptyInput" "off"
457 to your ServerLayout section. This will cause X to use the configured
458 kbd and mouse sections from your xorg.conf.
461 The GENERIC kernels for all architectures now default to the new USB2
462 stack. No kernel config options or code have been removed so if a
463 problem arises please report it and optionally revert to the old USB
464 stack. If you are loading USB kernel modules or have a custom kernel
465 that includes GENERIC then ensure that usb names are also changed over,
466 eg uftdi -> usb2_serial_ftdi.
468 Older programs linked against the ports libusb 0.1 need to be
469 redirected to the new stack's libusb20. /etc/libmap.conf can
471 # Map old usb library to new one for usb2 stack
472 libusb-0.1.so.8 libusb20.so.1
475 The ichsmb(4) driver has been changed to require SMBus slave
476 addresses be left-justified (xxxxxxx0b) rather than right-justified.
477 All of the other SMBus controller drivers require left-justified
478 slave addresses, so this change makes all the drivers provide the
482 INET6 statistics (struct ip6stat) was updated.
483 netstat(1) needs to be recompiled.
486 NTFS has been removed from GENERIC kernel on amd64 to match
487 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
488 will load ntfs.ko module automatically when NTFS support is
489 actually needed, unless ntfs.ko is not installed or security
490 level prohibits loading kernel modules. If either is the case,
491 "options NTFS" has to be added into kernel config.
494 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
495 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
496 800061. User space tools that rely on the size of struct tcpcb in
497 tcp_var.h (e.g. sockstat) need to be recompiled.
500 ng_tty(4) module updated to match the new TTY subsystem.
501 Due to API change, user-level applications must be updated.
502 New API support added to mpd5 CVS and expected to be present
503 in next mpd5.3 release.
506 With __FreeBSD_version 800060 the makefs tool is part of
507 the base system (it was a port).
510 The afdata and ifnet locks have been changed from mutexes to
511 rwlocks, network modules will need to be re-compiled.
514 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
515 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
516 The new code reduced struct rtentry{} by 16 bytes on 32-bit
517 architecture and 40 bytes on 64-bit architecture. The userland
518 applications "arp" and "ndp" have been updated accordingly.
519 The output from "netstat -r" shows only routing entries and
520 none of the L2 information.
523 __FreeBSD_version 800057 marks the switchover from the
524 binary ath hal to source code. Users must add the line:
526 options AH_SUPPORT_AR5416
528 to their kernel config files when specifying:
532 The ath_hal module no longer exists; the code is now compiled
533 together with the driver in the ath module. It is now
534 possible to tailor chip support (i.e. reduce the set of chips
535 and thereby the code size); consult ath_hal(4) for details.
538 __FreeBSD_version 800054 adds memory barriers to
539 <machine/atomic.h>, new interfaces to ifnet to facilitate
540 multiple hardware transmit queues for cards that support
541 them, and a lock-less ring-buffer implementation to
542 enable drivers to more efficiently manage queueing of
546 A new version of ZFS (version 13) has been merged to -HEAD.
547 This version has zpool attribute "listsnapshots" off by
548 default, which means "zfs list" does not show snapshots,
549 and is the same as Solaris behavior.
552 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
555 The uhci, ohci, ehci and slhci USB Host controller drivers have
556 been put into separate modules. If you load the usb module
557 separately through loader.conf you will need to load the
558 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
559 controller add the following to loader.conf:
565 The ABI used by the PMC toolset has changed. Please keep
566 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
570 The TTY subsystem of the kernel has been replaced by a new
571 implementation, which provides better scalability and an
572 improved driver model. Most common drivers have been migrated to
573 the new TTY subsystem, while others have not. The following
574 drivers have not yet been ported to the new TTY layer:
577 cy, digi, rc, rp, sio
583 ng_h4, ng_tty, ppp, sl, snp
585 Adding these drivers to your kernel configuration file shall
586 cause compilation to fail.
589 ntpd has been upgraded to 4.2.4p5.
592 OpenSSH has been upgraded to 5.1p1.
594 For many years, FreeBSD's version of OpenSSH preferred DSA
595 over RSA for host and user authentication keys. With this
596 upgrade, we've switched to the vendor's default of RSA over
597 DSA. This may cause upgraded clients to warn about unknown
598 host keys even for previously known hosts. Users should
599 follow the usual procedure for verifying host keys before
600 accepting the RSA key.
602 This can be circumvented by setting the "HostKeyAlgorithms"
603 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
606 Please note that the sequence of keys offered for
607 authentication has been changed as well. You may want to
608 specify IdentityFile in a different order to revert this
612 The sio(4) driver has been removed from the i386 and amd64
613 kernel configuration files. This means uart(4) is now the
614 default serial port driver on those platforms as well.
616 To prevent collisions with the sio(4) driver, the uart(4) driver
617 uses different names for its device nodes. This means the
618 onboard serial port will now most likely be called "ttyu0"
619 instead of "ttyd0". You may need to reconfigure applications to
620 use the new device names.
622 When using the serial port as a boot console, be sure to update
623 /boot/device.hints and /etc/ttys before booting the new kernel.
624 If you forget to do so, you can still manually specify the hints
625 at the loader prompt:
627 set hint.uart.0.at="isa"
628 set hint.uart.0.port="0x3F8"
629 set hint.uart.0.flags="0x10"
630 set hint.uart.0.irq="4"
634 The gpt(8) utility has been removed. Use gpart(8) to partition
638 The version that Linuxulator emulates was changed from 2.4.2
639 to 2.6.16. If you experience any problems with Linux binaries
640 please try to set sysctl compat.linux.osrelease to 2.4.2 and
641 if it fixes the problem contact emulation mailing list.
644 ISDN4BSD (I4B) was removed from the src tree. You may need to
645 update a your kernel configuration and remove relevant entries.
648 I have checked in code to support multiple routing tables.
649 See the man pages setfib(1) and setfib(2).
650 This is a hopefully backwards compatible version,
651 but to make use of it you need to compile your kernel
652 with options ROUTETABLES=2 (or more up to 16).
655 The 802.11 wireless support was redone to enable multi-bss
656 operation on devices that are capable. The underlying device
657 is no longer used directly but instead wlanX devices are
658 cloned with ifconfig. This requires changes to rc.conf files.
660 ifconfig_ath0="WPA DHCP"
663 ifconfig_wlan0="WPA DHCP"
664 see rc.conf(5) for more details. In addition, mergemaster of
665 /etc/rc.d is highly recommended. Simultaneous update of userland
666 and kernel wouldn't hurt either.
668 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
669 modules were merged into the base wlan module. All references
670 to these modules (e.g. in kernel config files) must be removed.
673 psm(4) has gained write(2) support in native operation level.
674 Arbitrary commands can be written to /dev/psm%d and status can
675 be read back from it. Therefore, an application is responsible
676 for status validation and error recovery. It is a no-op in
677 other operation levels.
680 Support for KSE threading has been removed from the kernel. To
681 run legacy applications linked against KSE libmap.conf may
682 be used. The following libmap.conf may be used to ensure
683 compatibility with any prior release:
685 libpthread.so.1 libthr.so.1
686 libpthread.so.2 libthr.so.2
687 libkse.so.3 libthr.so.3
690 The layout of struct vmspace has changed. This affects libkvm
691 and any executables that link against libkvm and use the
692 kvm_getprocs() function. In particular, but not exclusively,
693 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
694 The effects are minimal, but it's advisable to upgrade world
698 The latest em driver no longer has support in it for the
699 82575 adapter, this is now moved to the igb driver. The
700 split was done to make new features that are incompatible
701 with older hardware easier to do.
704 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
705 likewise the kernel option is now GEOM_LINUX_LVM.
708 The default NFS mount mode has changed from UDP to TCP for
709 increased reliability. If you rely on (insecurely) NFS
710 mounting across a firewall you may need to update your
714 Belatedly note the addition of m_collapse for compacting
718 The fts(3) structures have been changed to use adequate
719 integer types for their members and so to be able to cope
720 with huge file trees. The old fts(3) ABI is preserved
721 through symbol versioning in libc, so third-party binaries
722 using fts(3) should still work, although they will not take
723 advantage of the extended types. At the same time, some
724 third-party software might fail to build after this change
725 due to unportable assumptions made in its source code about
726 fts(3) structure members. Such software should be fixed
727 by its vendor or, in the worst case, in the ports tree.
728 FreeBSD_version 800015 marks this change for the unlikely
729 case that a portable fix is impossible.
732 To upgrade to -current after this date, you must be running
733 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
734 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
737 The ADAPTIVE_GIANT kernel option has been retired because its
738 functionality is the default now.
741 The AT keyboard emulation of sunkbd(4) has been turned on
742 by default. In order to make the special symbols of the Sun
743 keyboards driven by sunkbd(4) work under X these now have
744 to be configured the same way as Sun USB keyboards driven
745 by ukbd(4) (which also does AT keyboard emulation), f.e.:
747 Option "XkbLayout" "us"
748 Option "XkbRules" "xorg"
749 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
752 It has been decided that it is desirable to provide ABI
753 backwards compatibility to the FreeBSD 4/5/6 versions of the
754 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
755 broken with the introduction of PCI domain support (see the
756 20070930 entry). Unfortunately, this required the ABI of
757 PCIOCGETCONF to be broken again in order to be able to
758 provide backwards compatibility to the old version of that
759 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
760 again. As for prominent ports this affects neither pciutils
761 nor xorg-server this time, the hal port needs to be rebuilt
765 The misnamed kthread_create() and friends have been renamed
766 to kproc_create() etc. Many of the callers already
768 I will return kthread_create() and friends in a while
769 with implementations that actually create threads, not procs.
770 Renaming corresponds with version 800002.
776 Setting WITHOUT_LIBPTHREAD now means WITHOUT_LIBKSE and
777 WITHOUT_LIBTHR are set.
780 The PCI code has been made aware of PCI domains. This means that
781 the location strings as used by pciconf(8) etc are now in the
782 following format: pci<domain>:<bus>:<device>[:<function>]. It
783 also means that consumers of <sys/pciio.h> potentially need to
784 be recompiled; this includes the hal and xorg-server ports.
787 The caching daemon (cached) was renamed to nscd. nscd.conf
788 configuration file should be used instead of cached.conf and
789 nscd_enable, nscd_pidfile and nscd_flags options should be used
790 instead of cached_enable, cached_pidfile and cached_flags in
794 The getfacl(1) utility now prints owning user and group name
795 instead of owning uid and gid in the three line comment header.
796 This is the same behavior as getfacl(1) on Solaris and Linux.
799 The new IPsec code is now compiled in using the IPSEC option. The
800 IPSEC option now requires "device crypto" be defined in your kernel
801 configuration. The FAST_IPSEC kernel option is now deprecated.
804 The packet filter (pf) code has been updated to OpenBSD 4.1 Please
805 note the changed syntax - keep state is now on by default. Also
806 note the fact that ftp-proxy(8) has been changed from bottom up and
807 has been moved from libexec to usr/sbin. Changes in the ALTQ
808 handling also affect users of IPFW's ALTQ capabilities.
811 Remove KAME IPsec in favor of FAST_IPSEC, which is now the
812 only IPsec supported by FreeBSD. The new IPsec stack
813 supports both IPv4 and IPv6. The kernel option will change
814 after the code changes have settled in. For now the kernel
815 option IPSEC is deprecated and FAST_IPSEC is the only option, that
816 will change after some settling time.
819 The wicontrol(8) utility has been removed from the base system. wi(4)
820 cards should be configured using ifconfig(8), see the man page for more
824 The i386/amd64 GENERIC kernel now defaults to the nfe(4) driver
825 instead of the nve(4) driver. Please update your configuration
829 By default, /etc/rc.d/sendmail no longer rebuilds the aliases
830 database if it is missing or older than the aliases file. If
831 desired, set the new rc.conf option sendmail_rebuild_aliases
832 to "YES" to restore that functionality.
835 The IPv4 multicast socket code has been considerably modified, and
836 moved to the file sys/netinet/in_mcast.c. Initial support for the
837 RFC 3678 Source-Specific Multicast Socket API has been added to
838 the IPv4 network stack.
840 Strict multicast and broadcast reception is now the default for
841 UDP/IPv4 sockets; the net.inet.udp.strict_mcast_mship sysctl variable
842 has now been removed.
844 The RFC 1724 hack for interface selection has been removed; the use
845 of the Linux-derived ip_mreqn structure with IP_MULTICAST_IF has
846 been added to replace it. Consumers such as routed will soon be
847 updated to reflect this.
849 These changes affect users who are running routed(8) or rdisc(8)
850 from the FreeBSD base system on point-to-point or unnumbered
854 The net80211 layer has changed significantly and all wireless
855 drivers that depend on it need to be recompiled. Further these
856 changes require that any program that interacts with the wireless
857 support in the kernel be recompiled; this includes: ifconfig,
858 wpa_supplicant, hostapd, and wlanstats. Users must also, for
859 the moment, kldload the wlan_scan_sta and/or wlan_scan_ap modules
860 if they use modules for wireless support. These modules implement
861 scanning support for station and ap modes, respectively. Failure
862 to load the appropriate module before marking a wireless interface
863 up will result in a message to the console and the device not
867 The pam_nologin(8) module ceases to provide an authentication
868 function and starts providing an account management function.
869 Consequent changes to /etc/pam.d should be brought in using
870 mergemaster(8). Third-party files in /usr/local/etc/pam.d may
871 need manual editing as follows. Locate this line (or similar):
873 auth required pam_nologin.so no_warn
875 and change it according to this example:
877 account required pam_nologin.so no_warn
879 That is, the first word needs to be changed from "auth" to
880 "account". The new line can be moved to the account section
881 within the file for clarity. Not updating pam.conf(5) files
882 will result in nologin(5) ignored by the respective services.
885 The ether_ioctl() function has been synchronized with ioctl(2)
886 and ifnet.if_ioctl. Due to that, the size of one of its arguments
887 has changed on 64-bit architectures. All kernel modules using
888 ether_ioctl() need to be rebuilt on such architectures.
891 Improved INCLUDE_CONFIG_FILE support has been introduced to the
892 config(8) utility. In order to take advantage of this new
893 functionality, you are expected to recompile and install
894 src/usr.sbin/config. If you don't rebuild config(8), and your
895 kernel configuration depends on INCLUDE_CONFIG_FILE, the kernel
896 build will be broken because of a missing "kernconfstring"
900 Symbol versioning is enabled by default. To disable it, use
901 option WITHOUT_SYMVER. It is not advisable to attempt to
902 disable symbol versioning once it is enabled; your installworld
903 will break because a symbol version-less libc will get installed
904 before the install tools. As a result, the old install tools,
905 which previously had symbol dependencies to FBSD_1.0, will fail
906 because the freshly installed libc will not have them.
908 The default threading library (providing "libpthread") has been
909 changed to libthr. If you wish to have libkse as your default,
910 use option DEFAULT_THREAD_LIB=libkse for the buildworld.
913 The ABI breakage in sendmail(8)'s libmilter has been repaired
914 so it is no longer necessary to recompile mail filters (aka,
915 milters). If you recompiled mail filters after the 20070408
916 note, it is not necessary to recompile them again.
919 The new trunk(4) driver has been renamed to lagg(4) as it better
920 reflects its purpose. ifconfig will need to be recompiled.
923 sendmail(8) has been updated to version 8.14.1. Mail filters
924 (aka, milters) compiled against the libmilter included in the
925 base operating system should be recompiled.
928 Firmwares for ipw(4) and iwi(4) are now included in the base tree.
929 In order to use them one must agree to the respective LICENSE in
930 share/doc/legal and define legal.intel_<name>.license_ack=1 via
931 loader.conf(5) or kenv(1). Make sure to deinstall the now
932 deprecated modules from the respective firmware ports.
935 The name resolution/mapping functions addr2ascii(3) and ascii2addr(3)
936 were removed from FreeBSD's libc. These originally came from INRIA
937 IPv6. Nothing in FreeBSD ever used them. They may be regarded as
938 deprecated in previous releases.
939 The AF_LINK support for getnameinfo(3) was merged from NetBSD to
940 replace it as a more portable (and re-entrant) API.
943 To support interrupt filtering a modification to the newbus API
944 has occurred, ABI was broken and __FreeBSD_version was bumped
945 to 700031. Please make sure that your kernel and modules are in
947 http://docs.freebsd.org/cgi/mid.cgi?20070221233124.GA13941
950 The IPv6 multicast forwarding code may now be loaded into GENERIC
951 kernels by loading the ip_mroute.ko module. This is built into the
952 module unless WITHOUT_INET6 or WITHOUT_INET6_SUPPORT options are
953 set; see src.conf(5) for more information.
956 The output of netstat -r has changed. Without -n, we now only
957 print a "network name" without the prefix length if the network
958 address and mask exactly match a Class A/B/C network, and an entry
959 exists in the nsswitch "networks" map.
960 With -n, we print the full unabbreviated CIDR network prefix in
961 the form "a.b.c.d/p". 0.0.0.0/0 is always printed as "default".
962 This change is in preparation for changes such as equal-cost
963 multipath, and to more generally assist operational deployment
964 of FreeBSD as a modern IPv4 router.
967 PIM has been turned on by default in the IPv4 multicast
968 routing code. The kernel option 'PIM' has now been removed.
969 PIM is now built by default if option 'MROUTING' is specified.
970 It may now be loaded into GENERIC kernels by loading the
974 Support for IPIP tunnels (VIFF_TUNNEL) in IPv4 multicast routing
975 has been removed. Its functionality may be achieved by explicitly
976 configuring gif(4) interfaces and using the 'phyint' keyword in
978 XORP does not support source-routed IPv4 multicast tunnels nor the
979 integrated IPIP tunneling, therefore it is not affected by this
980 change. The __FreeBSD_version macro has been bumped to 700030.
983 Support for PCI Message Signalled Interrupts has been
984 re-enabled in the bge driver, only for those chips which are
985 believed to support it properly. If there are any problems,
986 MSI can be disabled completely by setting the
987 'hw.pci.enable_msi' and 'hw.pci.enable_msix' tunables to 0
991 Support for PCI Message Signalled Interrupts has been
992 disabled again in the bge driver. Many revisions of the
993 hardware fail to support it properly. Support can be
994 re-enabled by removing the #define of BGE_DISABLE_MSI in
995 "src/sys/dev/bge/if_bge.c".
998 Support for PCI Message Signalled Interrupts has been added
999 to the bge driver. If there are any problems, MSI can be
1000 disabled completely by setting the 'hw.pci.enable_msi' and
1001 'hw.pci.enable_msix' tunables to 0 in the loader.
1004 The removal of several facets of the experimental Threading
1005 system from the kernel means that the proc and thread structures
1006 have changed quite a bit. I suggest all kernel modules that might
1007 reference these structures be recompiled.. Especially the
1011 Sound infrastructure has been updated with various fixes and
1012 improvements. Most of the changes are pretty much transparent,
1013 with exceptions of followings:
1014 1) All sound driver specific sysctls (hw.snd.pcm%d.*) have been
1015 moved to their own dev sysctl nodes, for example:
1016 hw.snd.pcm0.vchans -> dev.pcm.0.vchans
1017 2) /dev/dspr%d.%d has been deprecated. Each channel now has its
1018 own chardev in the form of "dsp%d.<function>%d", where <function>
1019 is p = playback, r = record and v = virtual, respectively. Users
1020 are encouraged to use these devs instead of (old) "/dev/dsp%d.%d".
1021 This does not affect those who are using "/dev/dsp".
1024 geom(4)'s gmirror(8) class metadata structure has been
1025 rev'd from v3 to v4. If you update across this point and
1026 your metadata is converted for you, you will not be easily
1027 able to downgrade since the /boot/kernel.old/geom_mirror.ko
1028 kernel module will be unable to read the v4 metadata. You
1029 can resolve this by doing from the loader(8) prompt:
1031 set vfs.root.mountfrom="ufs:/dev/XXX"
1033 where XXX is the root slice of one of the disks that composed
1034 the mirror (i.e.: /dev/ad0s1a). You can then rebuild
1035 the array the same way you built it originally.
1038 The following binaries have been disconnected from the build:
1039 mount_devfs, mount_ext2fs, mount_fdescfs, mount_procfs, mount_linprocfs,
1040 and mount_std. The functionality of these programs has been
1041 moved into the mount program. For example, to mount a devfs
1042 filesystem, instead of using mount_devfs, use: "mount -t devfs".
1043 This does not affect entries in /etc/fstab, since entries in
1044 /etc/fstab are always processed with "mount -t fstype".
1047 Support for PCI Message Signalled Interrupts on i386 and amd64
1048 has been added to the kernel and various drivers will soon be
1049 updated to use MSI when it is available. If there are any problems,
1050 MSI can be disabled completely by setting the 'hw.pci.enable_msi'
1051 and 'hw.pci.enable_msix' tunables to 0 in the loader.
1054 The MUTEX_PROFILING option has been renamed to LOCK_PROFILING.
1055 The lockmgr object layout has been changed as a result of having
1056 a lock_object embedded in it. As a consequence all file system
1057 kernel modules must be re-compiled. The mutex profiling man page
1058 has not yet been updated to reflect this change.
1061 KSE in the kernel has now been made optional and turned on by
1062 default. Use 'nooption KSE' in your kernel config to turn it
1063 off. All kernel modules *must* be recompiled after this change.
1064 There-after, modules from a KSE kernel should be compatible with
1065 modules from a NOKSE kernel due to the temporary padding fields
1066 added to 'struct proc'.
1069 mrouted and its utilities have been removed from the base system.
1072 Some ioctl(2) command codes have changed. Full backward ABI
1073 compatibility is provided if the "options COMPAT_FREEBSD6" is
1074 present in the kernel configuration file. Make sure to add
1075 this option to your kernel config file, or recompile X.Org
1076 and the rest of ports; otherwise they may refuse to work.
1079 tcpslice has been removed from the base system.
1082 The sizes of struct tcpcb (and struct xtcpcb) have changed due to
1083 the rewrite of TCP syncookies. Tools like netstat, sockstat, and
1084 systat needs to be rebuilt.
1087 libpcap updated to v0.9.4 and tcpdump to v3.9.4
1090 The IPFIREWALL_FORWARD_EXTENDED option is gone and the behaviour
1091 for IPFIREWALL_FORWARD is now as it was before when it was first
1092 committed and for years after. The behaviour is now ON.
1095 enigma(1)/crypt(1) utility has been changed on 64 bit architectures.
1096 Now it can decrypt files created from different architectures.
1097 Unfortunately, it is no longer able to decrypt a cipher text
1098 generated with an older version on 64 bit architectures.
1099 If you have such a file, you need old utility to decrypt it.
1102 The interface version of the i4b kernel part has changed. So
1103 after updating the kernel sources and compiling a new kernel,
1104 the i4b user space tools in "/usr/src/usr.sbin/i4b" must also
1105 be rebuilt, and vice versa.
1108 The XBOX kernel now defaults to the nfe(4) driver instead of
1109 the nve(4) driver. Please update your configuration
1113 The i386-only lnc(4) driver for the AMD Am7900 LANCE and Am79C9xx
1114 PCnet family of NICs has been removed. The new le(4) driver serves
1115 as an equivalent but cross-platform replacement with the pcn(4)
1116 driver still providing performance-optimized support for the subset
1117 of AMD Am79C971 PCnet-FAST and greater chips as before.
1120 The machdep.* sysctls and the adjkerntz utility have been
1121 modified a bit. The new adjkerntz utility uses the new
1122 sysctl names and sysctlbyname() calls, so it may be impossible
1123 to run an old /sbin/adjkerntz utility in single-user mode
1124 with a new kernel. Replace the `adjkerntz -i' step before
1125 `make installworld' with:
1127 /usr/obj/usr/src/sbin/adjkerntz/adjkerntz -i
1129 and proceed as usual with the rest of the installworld-stage
1130 steps. Otherwise, you risk installing binaries with their
1131 timestamp set several hours in the future, especially if
1132 you are running with local time set to GMT+X hours.
1135 The ip6fw utility has been removed. The behavior provided by
1136 ip6fw has been in ipfw2 for a good while and the rc.d scripts
1137 have been updated to deal with it. There are some rules that
1138 might not migrate cleanly. Use rc.firewall6 as a template to
1142 The puc(4) driver has been overhauled. The ebus(4) and sbus(4)
1143 attachments have been removed. Make sure to configure scc(4)
1144 on sparc64. Note also that by default puc(4) will use uart(4)
1145 and not sio(4) for serial ports because interrupt handling has
1146 been optimized for multi-port serial cards and only uart(4)
1147 implements the interface to support it.
1150 The scc(4) driver replaces puc(4) for Serial Communications
1151 Controllers (SCCs) like the Siemens SAB82532 and the Zilog
1152 Z8530. On sparc64, it is advised to add scc(4) to the kernel
1153 configuration to make sure that the serial ports remain
1157 Most world/kernel related NO_* build options changed names.
1158 New knobs have common prefixes WITHOUT_*/WITH_* (modelled
1159 after FreeBSD ports) and should be set in /etc/src.conf
1160 (the src.conf(5) manpage is provided). Full backwards
1161 compatibility is maintained for the time being though it's
1162 highly recommended to start moving old options out of the
1163 system-wide /etc/make.conf file into the new /etc/src.conf
1164 while also properly renaming them. More conversions will
1165 likely follow. Posting to current@:
1167 http://lists.freebsd.org/pipermail/freebsd-current/2006-March/061725.html
1170 The NETSMBCRYPTO kernel option has been retired because its
1171 functionality is always included in NETSMB and smbfs.ko now.
1174 The TDFX_LINUX kernel option was retired and replaced by the
1175 tdfx_linux device. The latter can be loaded as the 3dfx_linux.ko
1176 kernel module. Loading it alone should suffice to get 3dfx support
1177 for Linux apps because it will pull in 3dfx.ko and linux.ko through
1181 The 'audit' group was added to support the new auditing functionality
1182 in the base system. Be sure to follow the directions for updating,
1183 including the requirement to run mergemaster -p.
1186 The kernel ABI to file system modules was changed on i386.
1187 Please make sure that your kernel and modules are in sync.
1190 This actually occured some time ago, but installing the kernel
1191 now also installs a bunch of symbol files for the kernel modules.
1192 This increases the size of /boot/kernel to about 67Mbytes. You
1193 will need twice this if you will eventually back this up to kernel.old
1194 on your next install.
1195 If you have a shortage of room in your root partition, you should add
1196 -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes"
1197 to your /etc/make.conf.
1200 libc's malloc implementation has been replaced. This change has the
1201 potential to uncover application bugs that previously went unnoticed.
1202 See the malloc(3) manual page for more details.
1205 The generic netgraph(4) cookie has been changed. If you upgrade
1206 kernel passing this point, you also need to upgrade userland
1207 and netgraph(4) utilities like ports/net/mpd or ports/net/mpd4.
1210 si(4)'s device files now contain the unit number.
1211 Uses of {cua,tty}A[0-9a-f] should be replaced by {cua,tty}A0[0-9a-f].
1214 The kernel ABI was mostly destroyed due to a change in the size
1215 of struct lock_object which is nested in other structures such
1216 as mutexes which are nested in all sorts of other structures.
1217 Make sure your kernel and modules are in sync.
1220 The page coloring algorithm in the VM subsystem was converted
1221 from tuning with kernel options to autotuning. Please remove
1222 any PQ_* option except PQ_NOOPT from your kernel config.
1225 The net80211-related tools in the tools/tools/ath directory
1226 have been moved to tools/tools/net80211 and renamed with a
1227 "wlan" prefix. Scripts that use them should be adjusted
1231 Scripts in the local_startup directories (as defined in
1232 /etc/defaults/rc.conf) that have the new rc.d semantics will
1233 now be run as part of the base system rcorder. If there are
1234 errors or problems with one of these local scripts, it could
1235 cause boot problems. If you encounter such problems, boot in
1236 single user mode, remove that script from the */rc.d directory.
1237 Please report the problem to the port's maintainer, and the
1238 freebsd-ports@freebsd.org mailing list.
1241 The nodev mount option was deprecated in RELENG_6 (where it
1242 was a no-op), and is now unsupported. If you have nodev or dev listed
1243 in /etc/fstab, remove it, otherwise it will result in a mount error.
1246 ABI between ipfw(4) and ipfw(8) has been changed. You need
1247 to rebuild ipfw(8) when rebuilding kernel.
1250 rp(4)'s device files now contain the unit number.
1251 Uses of {cua,tty}R[0-9a-f] should be replaced by {cua,tty}R0[0-9a-f].
1254 /etc/rc.d/ppp-user has been renamed to /etc/rc.d/ppp.
1255 Its /etc/rc.conf.d configuration file has been `ppp' from
1256 the beginning, and hence there is no need to touch it.
1259 Now most modules get their build-time options from the kernel
1260 configuration file. A few modules still have fixed options
1261 due to their non-conformant implementation, but they will be
1262 corrected eventually. You may need to review the options of
1263 the modules in use, explicitly specify the non-default options
1264 in the kernel configuration file, and rebuild the kernel and
1268 kern.polling.enable sysctl MIB is now deprecated. Use ifconfig(8)
1269 to turn polling(4) on your interfaces.
1272 The old bridge(4) implementation was retired. The new
1273 if_bridge(4) serves as a full functional replacement.
1276 The ai_addrlen of a struct addrinfo was changed to a socklen_t
1277 to conform to POSIX-2001. This change broke an ABI
1278 compatibility on 64 bit architecture. You have to recompile
1279 userland programs that use getaddrinfo(3) on 64 bit
1283 RELENG_6 branched here.
1286 The pccard_ifconfig rc.conf variable has been removed and a new
1287 variable, ifconfig_DEFAULT has been introduced. Unlike
1288 pccard_ifconfig, ifconfig_DEFAULT applies to ALL interfaces that
1289 do not have ifconfig_ifn entries rather than just those in
1290 removable_interfaces.
1293 Some previous versions of PAM have permitted the use of
1294 non-absolute paths in /etc/pam.conf or /etc/pam.d/* when referring
1295 to third party PAM modules in /usr/local/lib. A change has been
1296 made to require the use of absolute paths in order to avoid
1297 ambiguity and dependence on library path configuration, which may
1298 affect existing configurations.
1301 Major changes to network interface API. All drivers must be
1302 recompiled. Drivers not in the base system will need to be
1303 updated to the new APIs.
1306 Changes were made to kinfo_proc in sys/user.h. Please recompile
1307 userland, or commands like `fstat', `pkill', `ps', `top' and `w'
1308 will not behave correctly.
1310 The API and ABI for hwpmc(4) have changed with the addition
1311 of sampling support. Please recompile lib/libpmc(3) and
1312 usr.sbin/{pmcstat,pmccontrol}.
1315 The OpenBSD dhclient was imported in place of the ISC dhclient
1316 and the network interface configuration scripts were updated
1317 accordingly. If you use DHCP to configure your interfaces, you
1318 must now run devd. Also, DNS updating was lost so you will need
1319 to find a workaround if you use this feature.
1321 The '_dhcp' user was added to support the OpenBSD dhclient. Be
1322 sure to run mergemaster -p (like you are supposed to do every time
1326 if_bridge was added to the tree. This has changed struct ifnet.
1327 Please recompile userland and all network related modules.
1330 The n_net of a struct netent was changed to an uint32_t, and
1331 1st argument of getnetbyaddr() was changed to an uint32_t, to
1332 conform to POSIX-2001. These changes broke an ABI
1333 compatibility on 64 bit architecture. With these changes,
1334 shlib major of libpcap was bumped. You have to recompile
1335 userland programs that use getnetbyaddr(3), getnetbyname(3),
1336 getnetent(3) and/or libpcap on 64 bit architecture.
1339 Kernel parsing of extra options on '#!' first lines of shell
1340 scripts has changed. Lines with multiple options likely will
1341 fail after this date. For full details, please see
1342 http://people.freebsd.org/~gad/Updating-20050528.txt
1345 The packet filter (pf) code has been updated to OpenBSD 3.7
1346 Please note the changed anchor syntax and the fact that
1347 authpf(8) now needs a mounted fdescfs(5) to function.
1350 The NO_MIXED_MODE kernel option has been removed from the i386
1351 amd64 platforms as its use has been superceded by the new local
1352 APIC timer code. Any kernel config files containing this option
1356 The on-disk format of LC_CTYPE files was changed to be machine
1357 independent. Please make sure NOT to use NO_CLEAN buildworld
1358 when crossing this point. Crossing this point also requires
1359 recompile or reinstall of all locale depended packages.
1362 The ifi_epoch member of struct if_data has been changed to
1363 contain the uptime at which the interface was created or the
1364 statistics zeroed rather then the wall clock time because
1365 wallclock time may go backwards. This should have no impact
1366 unless an snmp implementation is using this value (I know of
1367 none at this point.)
1370 The acpi_perf and acpi_throttle drivers are now part of the
1371 acpi(4) main module. They are no longer built separately.
1374 The layout of struct image_params has changed. You have to
1375 recompile all compatibility modules (linux, svr4, etc) for use
1376 with the new kernel.
1379 The p4tcc driver has been merged into cpufreq(4). This makes
1380 "options CPU_ENABLE_TCC" obsolete. Please load cpufreq.ko or
1381 compile in "device cpufreq" to restore this functionality.
1384 The responsibility of recomputing the file system summary of
1385 a SoftUpdates-enabled dirty volume has been transferred to the
1386 background fsck. A rebuild of fsck(8) utility is recommended
1387 if you have updated the kernel.
1389 To get the old behavior (recompute file system summary at mount
1390 time), you can set vfs.ffs.compute_summary_at_mount=1 before
1391 mounting the new volume.
1394 The cpufreq import is complete. As part of this, the sysctls for
1395 acpi(4) throttling have been removed. The power_profile script
1396 has been updated, so you can use performance/economy_cpu_freq in
1397 rc.conf(5) to set AC on/offline cpu frequencies.
1400 NG_VERSION has been increased. Recompiling kernel (or ng_socket.ko)
1401 requires recompiling libnetgraph and userland netgraph utilities.
1404 Support for abbreviated forms of a number of ipfw options is
1405 now deprecated. Warnings are printed to stderr indicating the
1406 correct full form when a match occurs. Some abbreviations may
1407 be supported at a later date based on user feedback. To be
1408 considered for support, abbreviations must be in use prior to
1409 this commit and unlikely to be confused with current key words.
1412 By a popular demand, a lot of NOFOO options were renamed
1413 to NO_FOO (see bsd.compat.mk for a full list). The old
1414 spellings are still supported, but will cause annoying
1415 warnings on stderr. Make sure you upgrade properly (see
1416 the COMMON ITEMS: section later in this file).
1419 Auto-loading of ancillary wlan modules such as wlan_wep has
1420 been temporarily disabled; you need to statically configure
1421 the modules you need into your kernel or explicitly load them
1422 prior to use. Specifically, if you intend to use WEP encryption
1423 with an 802.11 device load/configure wlan_wep; if you want to
1424 use WPA with the ath driver load/configure wlan_tkip, wlan_ccmp,
1425 and wlan_xauth as required.
1428 The behaviour of ppp(8) has changed slightly. If lqr is enabled
1429 (``enable lqr''), older versions would revert to LCP ECHO mode on
1430 negotiation failure. Now, ``enable echo'' is required for this
1431 behaviour. The ppp version number has been bumped to 3.4.2 to
1435 The wlan support has been updated to split the crypto support
1436 into separate modules. For static WEP you must configure the
1437 wlan_wep module in your system or build and install the module
1438 in place where it can be loaded (the kernel will auto-load
1439 the module when a wep key is configured).
1442 The ath driver has been updated to split the tx rate control
1443 algorithm into a separate module. You need to include either
1444 ath_rate_onoe or ath_rate_amrr when configuring the kernel.
1447 Support for systems with an 80386 CPU has been removed. Please
1448 use FreeBSD 5.x or earlier on systems with an 80386.
1451 We have had a hack which would mount the root filesystem
1452 R/W if the device were named 'md*'. As part of the vnode
1453 work I'm doing I have had to remove this hack. People
1454 building systems which use preloaded MD root filesystems
1455 may need to insert a "/sbin/mount -u -o rw /dev/md0 /" in
1456 their /etc/rc scripts.
1459 FreeBSD 5.3 shipped here.
1462 The size of struct tcpcb has changed again due to the removal
1463 of RFC1644 T/TCP. You have to recompile userland programs that
1464 read kmem for tcp sockets directly (netstat, sockstat, etc.)
1467 The size of struct tcpcb has changed. You have to recompile
1468 userland programs that read kmem for tcp sockets directly
1469 (netstat, sockstat, etc.)
1472 RELENG_5 branched here. For older entries, please see updating
1473 in the RELENG_5 branch.
1479 Avoid using make -j when upgrading. From time to time in the
1480 past there have been problems using -j with buildworld and/or
1481 installworld. This is especially true when upgrading between
1482 "distant" versions (eg one that cross a major release boundary
1483 or several minor releases, or when several months have passed
1484 on the -current branch).
1486 Sometimes, obscure build problems are the result of environment
1487 poisoning. This can happen because the make utility reads its
1488 environment when searching for values for global variables.
1489 To run your build attempts in an "environmental clean room",
1490 prefix all make commands with 'env -i '. See the env(1) manual
1491 page for more details.
1493 When upgrading from one major version to another it is generally
1494 best to upgrade to the latest code in the currently installed branch
1495 first, then do an upgrade to the new branch. This is the best-tested
1496 upgrade path, and has the highest probability of being successful.
1497 Please try this approach before reporting problems with a major
1502 If you are updating from a prior version of FreeBSD (even one just
1503 a few days old), you should follow this procedure. It is the most
1504 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1506 make kernel-toolchain
1507 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1508 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1510 To test a kernel once
1511 ---------------------
1512 If you just want to boot a kernel once (because you are not sure
1513 if it works, or if you want to boot a known bad kernel to provide
1514 debugging information) run
1515 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1516 nextboot -k testkernel
1518 To just build a kernel when you know that it won't mess you up
1519 --------------------------------------------------------------
1520 This assumes you are already running a 5.X system. Replace
1521 ${arch} with the architecture of your machine (e.g. "i386",
1522 "alpha", "amd64", "ia64", "pc98", "sparc64", etc).
1524 cd src/sys/${arch}/conf
1525 config KERNEL_NAME_HERE
1526 cd ../compile/KERNEL_NAME_HERE
1531 If this fails, go to the "To build a kernel" section.
1533 To rebuild everything and install it on the current system.
1534 -----------------------------------------------------------
1535 # Note: sometimes if you are running current you gotta do more than
1536 # is listed here if you are upgrading from a really old current.
1538 <make sure you have good level 0 dumps>
1540 make kernel KERNCONF=YOUR_KERNEL_HERE
1542 <reboot in single user> [3]
1550 To cross-install current onto a separate partition
1551 --------------------------------------------------
1552 # In this approach we use a separate partition to hold
1553 # current's root, 'usr', and 'var' directories. A partition
1554 # holding "/", "/usr" and "/var" should be about 2GB in
1557 <make sure you have good level 0 dumps>
1560 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1561 <maybe newfs current's root partition>
1562 <mount current's root partition on directory ${CURRENT_ROOT}>
1563 make installworld DESTDIR=${CURRENT_ROOT}
1564 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1565 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1566 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1567 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1568 <reboot into current>
1569 <do a "native" rebuild/install as described in the previous section>
1570 <maybe install compatibility libraries from ports/misc/compat*>
1574 To upgrade in-place from 5.x-stable to current
1575 ----------------------------------------------
1576 <make sure you have good level 0 dumps>
1578 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1580 <reboot in single user> [3]
1587 Make sure that you've read the UPDATING file to understand the
1588 tweaks to various things you need. At this point in the life
1589 cycle of current, things change often and you are on your own
1590 to cope. The defaults can also change, so please read ALL of
1591 the UPDATING entries.
1593 Also, if you are tracking -current, you must be subscribed to
1594 freebsd-current@freebsd.org. Make sure that before you update
1595 your sources that you have read and understood all the recent
1596 messages there. If in doubt, please track -stable which has
1597 much fewer pitfalls.
1599 [1] If you have third party modules, such as vmware, you
1600 should disable them at this point so they don't crash your
1603 [3] From the bootblocks, boot -s, and then do
1608 adjkerntz -i # if CMOS is wall time
1609 Also, when doing a major release upgrade, it is required that
1610 you boot into single user mode to do the installworld.
1612 [4] Note: This step is non-optional. Failure to do this step
1613 can result in a significant reduction in the functionality of the
1614 system. Attempting to do it by hand is not recommended and those
1615 that pursue this avenue should read this file carefully, as well
1616 as the archives of freebsd-current and freebsd-hackers mailing lists
1617 for potential gotchas.
1619 [5] Usually this step is a noop. However, from time to time
1620 you may need to do this if you get unknown user in the following
1621 step. It never hurts to do it all the time. You may need to
1622 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1623 install) after the buildworld before this step if you last updated
1624 from current before 20020224 or from -stable before 20020408.
1626 [8] In order to have a kernel that can run the 4.x binaries
1627 needed to do an installworld, you must include the COMPAT_FREEBSD4
1628 option in your kernel. Failure to do so may leave you with a system
1629 that is hard to boot to recover. A similar kernel option COMPAT_FREEBSD5
1630 is required to run the 5.x binaries on more recent kernels.
1632 Make sure that you merge any new devices from GENERIC since the
1633 last time you updated your kernel config file.
1635 [9] When checking out sources, you must include the -P flag to have
1636 cvs prune empty directories.
1638 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1639 "?=" instead of the "=" assignment operator, so that buildworld can
1640 override the CPUTYPE if it needs to.
1642 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1643 not on the command line, or in /etc/make.conf. buildworld will
1644 warn if it is improperly defined.
1647 This file contains a list, in reverse chronological order, of major
1648 breakages in tracking -current. Not all things will be listed here,
1649 and it only starts on October 16, 2004. Updating files can found in
1650 previous releases if your system is older than this.
1652 Copyright information:
1654 Copyright 1998-2005 M. Warner Losh. All Rights Reserved.
1656 Redistribution, publication, translation and use, with or without
1657 modification, in full or in part, in any form or format of this
1658 document are permitted without further permission from the author.
1660 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1661 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1662 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1663 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1664 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1665 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1666 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1667 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1668 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1669 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1670 POSSIBILITY OF SUCH DAMAGE.
1672 If you find this document useful, and you want to, you may buy the
1675 Contact Warner Losh if you have any questions about your use of